gui_main.py: Show download frame before download starts

gui/gui_main.py

@@ -1463,7 +1463,7 @@ class wx_python_gui:
         self.header.Centre(wx.HORIZONTAL)
         
         # Label: Download...
-        self.download_label = wx.StaticText(self.frame, label="Downloading...")
+        self.download_label = wx.StaticText(self.frame, label="Starting download shortly...")
         self.download_label.SetFont(wx.Font(12, wx.DEFAULT, wx.NORMAL, wx.BOLD))
         self.download_label.SetPosition(
             wx.Point(
@@ -1485,6 +1485,7 @@ class wx_python_gui:
         self.return_to_main_menu.Bind(wx.EVT_BUTTON, self.main_menu)
         self.return_to_main_menu.Centre(wx.HORIZONTAL)
         self.frame.SetSize(-1, self.return_to_main_menu.GetPosition().y + self.return_to_main_menu.GetSize().height + 40)
+        wx.GetApp().Yield()
 
         # Download macOS install data
         if installer.download_install_assistant(self.constants.payload_path, app_dict['Link']):

resources/ioreg.py

@@ -1,19 +1,10 @@
-# Handle misc CLI menu options
+# PyObjc Handling for IOKit
 # Copyright (C) 2020-2022, Dhinak G
 
 from __future__ import annotations
 
 from typing import NewType, Union
-import subprocess
+import objc
-
-try:
-    import objc
-except ImportError:
-    subprocess.run(["pip3", "install", "pyobjc"], stdout=subprocess.PIPE)
-    try:
-        import objc
-    except ImportError:
-        raise Exception("Missing PyObjc library!\nPlease run the following before starting OCLP:\npip3 install pyobjc")
 
 from CoreFoundation import CFRelease, kCFAllocatorDefault  # type: ignore # pylint: disable=no-name-in-module
 from Foundation import NSBundle  # type: ignore # pylint: disable=no-name-in-module